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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // A fake media source that generates video and audio frames to a cast | 5 // A fake media source that generates video and audio frames to a cast |
6 // sender. | 6 // sender. |
7 // This class can transcode a WebM file using FFmpeg. It can also | 7 // This class can transcode a WebM file using FFmpeg. It can also |
8 // generate an animation and audio of fixed frequency. | 8 // generate an animation and audio of fixed frequency. |
9 | 9 |
10 #ifndef MEDIA_CAST_TEST_FAKE_MEDIA_SOURCE_H_ | 10 #ifndef MEDIA_CAST_TEST_FAKE_MEDIA_SOURCE_H_ |
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33 namespace media { | 33 namespace media { |
34 | 34 |
35 class AudioBus; | 35 class AudioBus; |
36 class AudioConverter; | 36 class AudioConverter; |
37 class AudioFifo; | 37 class AudioFifo; |
38 class AudioTimestampHelper; | 38 class AudioTimestampHelper; |
39 class FFmpegGlue; | 39 class FFmpegGlue; |
40 class InMemoryUrlProtocol; | 40 class InMemoryUrlProtocol; |
41 class VideoFrame; | 41 class VideoFrame; |
42 | 42 |
| 43 struct ScopedPtrAVFreeContext; |
| 44 |
43 namespace cast { | 45 namespace cast { |
44 | 46 |
45 class AudioFrameInput; | 47 class AudioFrameInput; |
46 class VideoFrameInput; | 48 class VideoFrameInput; |
47 class TestAudioBusFactory; | 49 class TestAudioBusFactory; |
48 | 50 |
49 class FakeMediaSource : public media::AudioConverter::InputCallback { | 51 class FakeMediaSource : public media::AudioConverter::InputCallback { |
50 public: | 52 public: |
51 // |task_runner| is to schedule decoding tasks. | 53 // |task_runner| is to schedule decoding tasks. |
52 // |clock| is used by this source but is not owned. | 54 // |clock| is used by this source but is not owned. |
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106 void DecodeAudio(ScopedAVPacket packet); | 108 void DecodeAudio(ScopedAVPacket packet); |
107 void DecodeVideo(ScopedAVPacket packet); | 109 void DecodeVideo(ScopedAVPacket packet); |
108 void Decode(bool decode_audio); | 110 void Decode(bool decode_audio); |
109 | 111 |
110 // media::AudioConverter::InputCallback implementation. | 112 // media::AudioConverter::InputCallback implementation. |
111 double ProvideInput(media::AudioBus* output_bus, | 113 double ProvideInput(media::AudioBus* output_bus, |
112 uint32_t frames_delayed) final; | 114 uint32_t frames_delayed) final; |
113 | 115 |
114 AVStream* av_audio_stream(); | 116 AVStream* av_audio_stream(); |
115 AVStream* av_video_stream(); | 117 AVStream* av_video_stream(); |
116 AVCodecContext* av_audio_context(); | |
117 AVCodecContext* av_video_context(); | |
118 | 118 |
119 const scoped_refptr<base::SingleThreadTaskRunner> task_runner_; | 119 const scoped_refptr<base::SingleThreadTaskRunner> task_runner_; |
120 const media::AudioParameters output_audio_params_; | 120 const media::AudioParameters output_audio_params_; |
121 const FrameSenderConfig video_config_; | 121 const FrameSenderConfig video_config_; |
122 const bool keep_frames_; | 122 const bool keep_frames_; |
123 bool variable_frame_size_mode_; | 123 bool variable_frame_size_mode_; |
124 gfx::Size current_frame_size_; | 124 gfx::Size current_frame_size_; |
125 base::TimeTicks next_frame_size_change_time_; | 125 base::TimeTicks next_frame_size_change_time_; |
126 scoped_refptr<AudioFrameInput> audio_frame_input_; | 126 scoped_refptr<AudioFrameInput> audio_frame_input_; |
127 scoped_refptr<VideoFrameInput> video_frame_input_; | 127 scoped_refptr<VideoFrameInput> video_frame_input_; |
128 uint8_t synthetic_count_; | 128 uint8_t synthetic_count_; |
129 base::TickClock* const clock_; // Not owned by this class. | 129 base::TickClock* const clock_; // Not owned by this class. |
130 | 130 |
131 // Time when the stream starts. | 131 // Time when the stream starts. |
132 base::TimeTicks start_time_; | 132 base::TimeTicks start_time_; |
133 | 133 |
134 // The following three members are used only for fake frames. | 134 // The following three members are used only for fake frames. |
135 int audio_frame_count_; // Each audio frame is exactly 10ms. | 135 int audio_frame_count_; // Each audio frame is exactly 10ms. |
136 int video_frame_count_; | 136 int video_frame_count_; |
137 std::unique_ptr<TestAudioBusFactory> audio_bus_factory_; | 137 std::unique_ptr<TestAudioBusFactory> audio_bus_factory_; |
138 | 138 |
139 base::MemoryMappedFile file_data_; | 139 base::MemoryMappedFile file_data_; |
140 std::unique_ptr<InMemoryUrlProtocol> protocol_; | 140 std::unique_ptr<InMemoryUrlProtocol> protocol_; |
141 std::unique_ptr<FFmpegGlue> glue_; | 141 std::unique_ptr<FFmpegGlue> glue_; |
142 AVFormatContext* av_format_context_; | 142 AVFormatContext* av_format_context_; |
143 | 143 |
144 int audio_stream_index_; | 144 int audio_stream_index_; |
| 145 std::unique_ptr<AVCodecContext, ScopedPtrAVFreeContext> av_audio_context_; |
145 AudioParameters source_audio_params_; | 146 AudioParameters source_audio_params_; |
146 double playback_rate_; | 147 double playback_rate_; |
147 | 148 |
148 int video_stream_index_; | 149 int video_stream_index_; |
| 150 std::unique_ptr<AVCodecContext, ScopedPtrAVFreeContext> av_video_context_; |
149 int video_frame_rate_numerator_; | 151 int video_frame_rate_numerator_; |
150 int video_frame_rate_denominator_; | 152 int video_frame_rate_denominator_; |
151 | 153 |
152 // These are used for audio resampling. | 154 // These are used for audio resampling. |
153 std::unique_ptr<media::AudioConverter> audio_converter_; | 155 std::unique_ptr<media::AudioConverter> audio_converter_; |
154 std::unique_ptr<media::AudioFifo> audio_fifo_; | 156 std::unique_ptr<media::AudioFifo> audio_fifo_; |
155 std::unique_ptr<media::AudioBus> audio_fifo_input_bus_; | 157 std::unique_ptr<media::AudioBus> audio_fifo_input_bus_; |
156 media::AudioRendererAlgorithm audio_algo_; | 158 media::AudioRendererAlgorithm audio_algo_; |
157 | 159 |
158 // Track the timestamp of audio sent to the receiver. | 160 // Track the timestamp of audio sent to the receiver. |
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169 // NOTE: Weak pointers must be invalidated before all other member variables. | 171 // NOTE: Weak pointers must be invalidated before all other member variables. |
170 base::WeakPtrFactory<FakeMediaSource> weak_factory_; | 172 base::WeakPtrFactory<FakeMediaSource> weak_factory_; |
171 | 173 |
172 DISALLOW_COPY_AND_ASSIGN(FakeMediaSource); | 174 DISALLOW_COPY_AND_ASSIGN(FakeMediaSource); |
173 }; | 175 }; |
174 | 176 |
175 } // namespace cast | 177 } // namespace cast |
176 } // namespace media | 178 } // namespace media |
177 | 179 |
178 #endif // MEDIA_CAST_TEST_FAKE_MEDIA_SOURCE_H_ | 180 #endif // MEDIA_CAST_TEST_FAKE_MEDIA_SOURCE_H_ |
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